反应详情

A mixture of 1.23 g of ethyl 4-chloro-2-(3,4-dichlorobenzyl)-5-methylthieno[2,3-d]pyrimidine-6-carboxylate, 594 mg of thiourea and 50 mL of ethanol was stirred at room temperature for 35 hours. Then 50 mL of water was added, followed by 30 minutes' stirring. Crystals were recovered by filtration and washed with water. Drying the same under aeration, 1.15 g of the title compound was obtained.

1. waitfollowed by 30 minutes
2. stirring' stirring
3. filtrationCrystals were recovered by filtration
4. washwashed with water
5. customDrying the same under aeration